Publicidad
Idiomas disponibles
Idiomas disponibles
MAINTENANCE
INSTALLATION OF NEW SEAL
1.
Clean all gasket surfaces thoroughly before
reassembly. Clean the seal bore cavity in the pump
adapter.
2.
Wet the rubber seat ring with soapy water and push
the stationary part of the seal into the seal bore
cavity. Use a pieve of 1" pipe pressin on a cardboard
washer (to prevent damaging seal surface) as press.
Make sure that the seal half is fully seated in the seal
bore cavity. Remove the cardboard once the seal is
in place.
Figure 21
Figure 22
Figure 23
Figure 24
18
3.
Make sure that the shaft keys are in plave on the shaft. If they are
not, squeeze them in place now with slip joint pliers. Do not tap them
or hit them with a hammer; you could bend the shaft (see Figure 21).
When the keys are correctly installed, the adapter will pass over the
keys without interference.
4.
Carefully slide the adapter over the shaft (see Figure 22). Do not
damage the shaft sealing surface; it is highly polished and any slight
scratches or nicks will ruin it.
5.
Using the alignment marks made before disassembly, line up the
adapter with the motor and bolt the adapter in place. Tighten the cap
screws evely.
6.
Push the shaft seal and seal spring onto the shaft, after making
sure that the seal faces and shaft are clean. Take care that the shaft
should dow not damage the carbon seal face. Follow the seal spring
with the spring holder; compress the spring and give the spring
holder a quarter turn to lock it under the first shaft key (see Figure
23).
7.
Slide the first impeller onto the shaft; follow it with the impeller
spacer. Twist the impeller on the shaft to make sure that the shaft
key is still in palce and the impeller is locked to the shaft (the shaft
should turn with the impeller).
8.
Install a new volute gasket, lining up the bolt holes with the bolt holes
in the adapter. Make sue the gasket is right side up so that the water
passage holes line up with the water passages in the volutes.
9.
Install the intermediate volute, aligning it with the mark made before
disassembly. Use the long cap screws to check this alignment.
It cannot be stressed too strongly that all bolt holes and water
passages of all gaskets and volutes MUST line up with each other, or
the pump will not be assembled correctly.
10. Make sure the second shaft key is in place and install the second
impeller. Twist the impeller to make sure that the shaft key is still
in place. Hold the motor shaft with slip-joint pliers or vice-grips
and install and tighten the impeller locknut. Tightening the lock nut
automatically spaves the impeller correctly. Do not overtighten.
11. Install the base volute gasket. Make sure the gasket is right side up
so that the water passage holes line up with the water passages
in the volutes. Install the base volute, using the alignment marks
made before disassembly. Make sure that the pump discharge will
correctly meet the piping when the pump is reinstalled.
12. Inset the four base capscrews and tighten evenly (see Figure 24).
These should be easy to install if everything is correctly aligned. If
not, do not force them; go back over your work and find and correct
the misalignment.
13. Reintstall the pressure switch barb fitting and pressure tube.
14. Reinstall the pump on the adapter flange (use a new gasket)
and reconnect the wiring and grounding. Pump is now ready for
operation.
P15004 (12-15-22)
Publicidad
